Fastening device for electrical sign-receptacles.



E. H FREEMAN. FASTENING DEVICE FOR ELEGTRIGAL SIGN REOEPTAULES APPLIGATION FILED APRJ, 1910.

996,844; I Patented July 4,1911.

awvmm To all whom to may concern:

EDGAR H. FREEMAN, OF TREN'ION,

Enron.

NEW JERSEY, ASSIGNOR TO E. H. FREEMAN ELEC TRIO COMPANY, OF TRENTON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

I FASTENING DEVICE FOR ELECTRICAL sIeN-REcEP'rAcLEsl Be it known that I, EDGAR H. FREEMAN, a citizen of the United States, residing at Trenton, in the county of Mercer and State ofN-ew'Jersey, have invented certain new an'dmseful' Improvements in Fastening Doventi'on is of special panying drawings, in whichvices for Electrical Sign-Receptacles, of which the following is a specification.

This invention relates to the subject of fastening means for electrical sign receptacles, and has in view a simple and practical device possessing special utility in its application to the mounting and fastening of electrical receptacles upon a sign board or equivalent supporting element or sheet.

One of the distinctive-objects of the present invention is to provide a fastening means for sign receptacles which not only provides means for securely fastening the receptacle to its supporting element, but also positively holds the receptacle against turningwith out resortingtospeciall'y formed holes in the supporting element or any of the other expedients which are commonly employed in some constructions for that purpose.

The present invention also contemplates a structure which is exceedingly simple and of an inexpensive character and, furthermore, one which admits of easy handling and manipulation. In the latter connection the inutility, that is to say, it not only subserves the functions above indicated, but also greatly facilitates the operations of wiring and placing 'the receptacle. Also, the present invention admits of the receptacle being positioned and fastened in place wholly from one side of the sign board or other supporting element, which is decidedly advantageous over those forms of sign receptacle fastening which require workmen upon both sides of the sign board.

With these and other objects in view, which will readily appear to those familiar with the art as the details'of the invention are better understood, the same consists in the novel construction, combination and arrangement of parts hereinafter more fully described, illustrated and claimed.

g The essential features of the invention are necessarily susceptible to structural modi fication Without departing from the spirit or scope thereof, but a preferred and practical embodiment is shown in the accom- Figure l is a sectional view illustrating an Specification of Letters Patent. Application filed April 1, 1910.

. of the fastening in the manner .consists of two members, member 6 and a coupling member 7 cooper- Patented July 4, 1911. Serial No. 552,797.

electrical receptacle fastened in the sign sheet by the improved fastening devices made according to the present invention. Fig. 2 is a plan view of the sign board or supporting element illustrating the plain round formation of the hole to receive the receptacle body. Figs. 3, 4 and 5 are detail perspective views, respectively, of the coupling and socket members of the fastening and of the receptacle, these several parts being illustrated in the order of assembly.

ike references designate corresponding parts in the several figures of the drawing. The improved fastening device forming the subject-matter of this application is intended 'to be applicable to different kinds and styles of electrical receptacles which are constructed for use in a sign sheet or equivalent supporting element, but in all forms of the invention the receptacle body must be specially formed to carry out the purposes and functions of the invention. To illustrate this, there is shown in the drawings an electrical sign receptacle of a type which embodies in its organization a one-piece porcelain or equivalent body 1, which is fitted with the necessary contacts and line terminal elements. According to the present invention the receptacle body 1 is exteriorly tapered, as indicated at 2, and is provided at a point intermediate the ends thereof with an annular binding shoulder 3 with which cooperates one of the members presently ex- 'plained.

In carrying outthe invention it is only necessary to provide the sign board or equivalent supporting element 4 with a plain circular hole 5 for the reception of the open end of the receptacle body and one of the members bf the fastening, inasmuch as the fastening-when securely tightened serves to rigidly held the receptacle in place. not only against endwise displacement but also against rotative movement, which is quite necessary on account of the frequent renewals required in the lamps.

The fastening device proper essentially namely, a socket ating with the receptacle body and with the supporting element to provide for securing the receptacle body in position. The socket member 6 of the fastening device is formed of sheet metal and consists of what may be su 'iporting element, and the contracting force upon the said socket .vidcd with an out-turned securing flange termed a longitudinally split screw-shell. This split screw-shell is tapered in the direction of its length to provide a conical 'sockct which receives therein the tapered body of the receptacle, and atone end the shell forming the socket-member 6 is pro- 8 which engages with the supporting element 4 at. one side thereof and about the edge of the hole 5 therein. assembling of the parts, it is to be noted that. the longitudinal split in In connection with the the socket member makes it resilient and permits the same to be contracted so that its flanged end socket member or shell 6 is adapted to have meniher 7 "she'll, whose threads engage with the'correfrom one side of the supporting element receptacle body inserted therein and crowded into said socket member by means of the coupling member 7. The coupling also consists of a. screw-threaded the tapered spending threads on the socket member or end with a holding flange receptacle body.

shelltl. In addition to its serew-thrcads the coupling member or shell '7 is formed at one 9 which impinges upon the annular binding shoulder 3 of the It, will thus be seen that receptacle body is inserted when the tapered conical socket member 6 into the tapered or the screwing home of the coupling member 7 causes the receptacle body to wedge tightly into the socket member with the result of se curely fastening the same in place against both endwise'and rotary displacement.

From the foregoing it. is clear that the construction and advantages of the herein described sign receptacle fastening will be apparent wit-bout it'urthcr i'lescription.

1. In an electrical receptacle mountipg, the combination with the supporting element and the receptacle body, of a fastening dev'icocomprising a screw-shell socket member engaged in the hole of the support a screw'shell coupling meming element, and her :urrangcd wholly beyond the supporting pling member having a at one-side of and element, said couholding engagement with the receptacle body and 'a screw engagementwith the sockct memher.

2. In an electrical receptacle mounting, the combination with the supporting element and a receptacle body, of a fastening device comprising a by the supporting element. and projecting to one side thereof and a coupling member arranged wholly at one sideotand beyond the supporting element, said coupling member having a holding ei'igagement with the receptacle body, and a detachable fastening connection with the 'socketmember.

8. in an electrical receptacle mounting, the combination with the supporting'element and a tapered receptacle body, of a fastening device comprising a tapered socket member carried by the supporting element and a coupling member engaged with the receptacle body and with the socket member.

l. In an electrical receptacle mounting, the combination with the supporting element and a receptacle body exteriorly tapered, eta fastening device comprising a re silient socket member fitted to the supporting elei'nent and being formed, with a taper, amt a couplingmen'iber arr: iged to Wedge the receptacle body in the socket member.

5. in an electrical receptacle mounting,

the combination with the supporting element and receptacle body having an external taper, of a fastening device comprising a screw-shell. socket member fitted to the supporting element and a screw-shell coupling member engaged with the receptacle body and also having screw-engagement. with the socket member. I

6. In an electrical receptacle mounting, the combination with the su iporting element, and a receptacle body having an external taper and an annular binding shoulder, of a fastening device comprising av flanged and split serewshell socket member sprung into the hole of the supporting element. and a flanged screw-shell coupling member engaging the shoulder of the receptacle body and having ascrew-engagement with the socket member.

In testimony whereof l hereunto atlix my signature in the presence of two witnesses. EDGAR H. Flll l-Eh'iiill.

\Vitnesses Casrnn J. FABER, MARY S. CURTIS.

socket member carried 

